CoursesCSVController.java

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package edu.ucsb.cs156.courses.controllers;
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import com.opencsv.bean.StatefulBeanToCsv;
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import com.opencsv.exceptions.CsvDataTypeMismatchException;
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import com.opencsv.exceptions.CsvRequiredFieldEmptyException;
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import edu.ucsb.cs156.courses.collections.ConvertedSectionCollection;
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import edu.ucsb.cs156.courses.documents.ConvertedSection;
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import edu.ucsb.cs156.courses.models.SectionCSVLine;
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import edu.ucsb.cs156.courses.services.SectionCSVLineService;
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import io.swagger.v3.oas.annotations.Operation;
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import io.swagger.v3.oas.annotations.Parameter;
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import io.swagger.v3.oas.annotations.media.Content;
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import io.swagger.v3.oas.annotations.media.Schema;
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import io.swagger.v3.oas.annotations.responses.ApiResponse;
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import io.swagger.v3.oas.annotations.tags.Tag;
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import java.io.IOException;
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import java.io.OutputStreamWriter;
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import java.io.Writer;
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import java.nio.charset.StandardCharsets;
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import java.util.List;
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import java.util.stream.Collectors;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.beans.factory.annotation.Autowired;
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import org.springframework.data.util.Streamable;
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import org.springframework.http.HttpHeaders;
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import org.springframework.http.MediaType;
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import org.springframework.http.ResponseEntity;
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import org.springframework.web.bind.annotation.GetMapping;
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import org.springframework.web.bind.annotation.RequestMapping;
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import org.springframework.web.bind.annotation.RequestParam;
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import org.springframework.web.bind.annotation.RestController;
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import org.springframework.web.servlet.mvc.method.annotation.StreamingResponseBody;
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@Slf4j
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@Tag(name = "API for course data as CSV downloads")
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@RequestMapping("/api/courses/csv")
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@RestController
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public class CoursesCSVController extends ApiController {
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  @Autowired ConvertedSectionCollection convertedSectionCollection;
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  @Autowired private SectionCSVLineService sectionCsvLineService;
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  @Operation(
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      summary = "Download Course List as CSV File",
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      description = "Returns a CSV file as a response",
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      responses = {
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        @ApiResponse(
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            responseCode = "200",
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            description = "CSV file",
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            content =
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                @Content(
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                    mediaType = "text/csv",
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                    schema = @Schema(type = "string", format = "binary"))),
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        @ApiResponse(responseCode = "500", description = "Internal Server Error")
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      })
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  @GetMapping(value = "/quarter", produces = "text/csv")
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  public ResponseEntity<StreamingResponseBody> csvForCourses(
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      @Parameter(name = "yyyyq", description = "quarter in yyyyq format", example = "20252")
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          @RequestParam
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          String yyyyq)
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      throws Exception, IOException {
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    StreamingResponseBody stream =
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        (outputStream) -> {
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          Iterable<ConvertedSection> iterable = convertedSectionCollection.findByQuarter(yyyyq);
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          List<SectionCSVLine> list =
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              Streamable.of(iterable).toList().stream()
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                  .map(
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                      section -> {
71 1 1. lambda$csvForCourses$0 : replaced return value with null for edu/ucsb/cs156/courses/controllers/CoursesCSVController::lambda$csvForCourses$0 → KILLED
 
                        return SectionCSVLine.toSectionCSVLine(section);
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                      })
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                  .collect(Collectors.toList());
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          try (Writer writer = new OutputStreamWriter(outputStream, StandardCharsets.UTF_8)) {
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            try {
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              StatefulBeanToCsv<SectionCSVLine> beanToCsvWriter =
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                  sectionCsvLineService.getStatefulBeanToCSV(writer);
79 1 1. lambda$csvForCourses$1 : removed call to com/opencsv/bean/StatefulBeanToCsv::write → KILLED
 
              beanToCsvWriter.write(list);
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            } catch (CsvDataTypeMismatchException | CsvRequiredFieldEmptyException e) {
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              log.error("Error writing CSV file", e);
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              throw new IOException("Error writing CSV file: " + e.getMessage());
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            }
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          }
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        };
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87 1 1. csvForCourses : replaced return value with null for edu/ucsb/cs156/courses/controllers/CoursesCSVController::csvForCourses → KILLED
 
    return ResponseEntity.ok()
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        .contentType(MediaType.parseMediaType("text/csv; charset=UTF-8"))
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        .header(
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            HttpHeaders.CONTENT_DISPOSITION,
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            String.format("attachment;filename=courses_%s.csv", yyyyq))
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        .header(HttpHeaders.CONTENT_TYPE, "text/csv; charset=UTF-8")
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        .header(HttpHeaders.ACCESS_CONTROL_EXPOSE_HEADERS, HttpHeaders.CONTENT_DISPOSITION)
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        .body(stream);
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  }
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}

Mutations

71

1.1
Location : lambda$csvForCourses$0
Killed by : edu.ucsb.cs156.courses.controllers.CoursesCSVControllerTests.[engine:junit-jupiter]/[class:edu.ucsb.cs156.courses.controllers.CoursesCSVControllerTests]/[method:testCsvForQuarter_success()] replaced return value with null for edu/ucsb/cs156/courses/controllers/CoursesCSVController::lambda$csvForCourses$0 → KILLED

79

1.1
Location : lambda$csvForCourses$1
Killed by : edu.ucsb.cs156.courses.controllers.CoursesCSVControllerTests.[engine:junit-jupiter]/[class:edu.ucsb.cs156.courses.controllers.CoursesCSVControllerTests]/[method:testCsvForQuarter_success()] removed call to com/opencsv/bean/StatefulBeanToCsv::write → KILLED

87

1.1
Location : csvForCourses
Killed by : edu.ucsb.cs156.courses.controllers.CoursesCSVControllerTests.[engine:junit-jupiter]/[class:edu.ucsb.cs156.courses.controllers.CoursesCSVControllerTests]/[method:test_csv_exception()] replaced return value with null for edu/ucsb/cs156/courses/controllers/CoursesCSVController::csvForCourses → KILLED

Active mutators

Tests examined


Report generated by PIT 1.17.0